Mô tả

Modem truyền số liệu cáp đồng 2 wires, giao tiếp E1-V35, nguồn cấp 220VAC.
Hãng sản xuất: RAD Datacommunication
Xuất xứ: Israel

ASMI-52/AC/M/IP/4W  ASMI-52/AC/M/UTP/Q/2W  ASMI-52/AC/M/UTP/Q/4W  ASMI-52/AC/M/V35/2W
ASMI-52/AC/M/V35/4W  ASMI-52/AC/S/IP/4W  ASMI-52/AC/S/UTP/Q/2W  ASMI-52/AC/S/UTP/Q/4W
ASMI-52/AC/S/V35/2W  ASMI-52/AC/S/V35/4W

ASMi-52, ASMi-52L

 FEATURES

• Dedicated G.SHDSL modem with remote management

• Operates over 2-wire and 4-wire lines, enabling service over any copper infrastructure

• Utilizes TC-PAM line coding for extending the operation range to 12.0 km (7.4 miles) and eliminating the need for repeaters

• Operates at multiple data rates between 64 kbps and 2048 kbps enabling single-platform system upgrades

• Supports X.21, V.35, G.703/G.704 E1 and Ethernet interfaces, allowing connection to different DTE types

• Supports embedded operation channel for end-to-end system management and supervision as per ITU-T G.991.2

• Provides extensive diagnostics, including loopbacks, G.SHDSL and E1 performance monitoring

• ASMi-52, G.SHDSL modem, operates in full duplex mode over 2-wire and 4-wire lines.

• ASMi-52 supports multiple data rates: n x 64 kbps (n = 1, 2, …, 32), or n x 128 kbps (n = 1, 2, …, 16). The data rates depend on the line interface and DTE interface types.

• ASMi-52 employs standard G.SHDSL TC-PAM technology to extend the transmission range (see Table 1 and Table 2), enabling the carrier to reach more customers at lower cost.

• ASMi-52 supports X.21, V.35 and G.703/G.704 E1 interfaces. In addition, the modem supports Ethernet interface modules with a built-in bridge (IR-ETH/Q) or an IP router (IR-IP), which allow LAN-to-LAN connectivity using G.SHDSL technology.

• The modem uses an Embedded Operation Channel (EOC) for controlling and monitoring the remote unit. The management channel uses G.SHDSL overhead bits, operating without interfering with the data transmission in compliance with the ITU-T G.991.2 requirements.

• ASMi-52 is managed via an ASCII terminal connected to the modem’s supervisory port by an embedded menu-driven software.

• ASMi-52 has comprehensive diagnostics capabilities that include the following test options:

  • Real-time alarms to alert user on fault conditions

  • V.54 local analog and remote digital loopbacks

  • G.SHDSL and E1 statistics collection for 15-minute and day intervals.

• The modem provides high voltage line protection in compliance with ITU K.21 and UL1950.

SPECIFICATIONS

LINE INTERFACE

• Type

2/4-wire unconditioned dedicated line (twisted pair)

• Line Coding

TC-PAM

• Range

See Table 1 and Table 2

• Impedance

13 5

• Standards

ITU-T 991.2
ETSI 101 524

• Protection

As per ITU K.21 and UL1950

• Connectors

RJ-45 and 5-clip terminal block

DTE INTERFACE

• Type

X.21, 15-pin, D-type, female
V.35, 34-pin, female
G.703/G.704 E1, RJ-45 or BNC
IR-ETH/Q (Ethernet bridge with
VLAN support), RJ-45
IR-IP (IP router), RJ-45

• Data Rate

Depends on the DTE interface type and number of line wires:

nx 64 kbps (n = 1, 2, …, 32)
nx 128 kbps (n = 1, 2, …, 16)

• E1 Coding

HDB3

• E1 Line Impedance

12 0 , balanced

7 5 , unbalanced

CONTROL PORT

• Interface

V.24/RS-232, DTE/DCE

• Format

7 or 8 bits; odd, even or no parity

• Baud Rate

9.6, 19.2, 38.4, 57.6, 115.2 kbps

• Connector

9-pin, D-type, female

GENERAL

• Timing

Derived from the following

sources:

Internal oscillator
External, from the attached DTE
Receive, derived from the received signal

Note: Slave units support only receive timing.

• Diagnostics

Loopbacks:

Local analog loopback in compliance with ITU V.54
Remote digital loopback in compliance with ITU V.54

Performance monitoring:

G.SHDSL statistics collection
E1 with CRC-4: per ITU G.706
E1 without CRC-4: BPV

• Indicators

PWR (green) ΠPower
DATA (yellow) ΠTransmit data (V.35 interface only)
SYNC A/B (green/red) ΠSync status of DSL line
E1 SYNC (red) ΠLoss of E1 sync (E1 interface only)
AIS (yellow) ΠiyAll 1s stringl) is received (E1 interface only)
ALM (red) ΠAn alarm enters the buffer
TST (red) ΠTest is in progress

• Physical

Height: 47.3 mm / 1.8 in
Width: 214 mm / 8.4 in
Depth: 125 mm / 4.9 in
Weight 0.5 kg / 1.1 lb

• Power

AC: 100 to 240 VAC ( 10%), 50 to 60 Hz, 17 VA max
DC: -48 VDC (-36 to -72 VDC), 7W max

• Power Consumption

5W (4-wire) or 4W (2-wire)

• Environment

Temperature: 0-50 C/32-122 F
Humidity: Up to 90%, non-condensing 

ORDERING INFO

ASMI-52/AC/M/IP/4W
ASMI-52/AC/M/UTP/Q/2W
ASMI-52/AC/M/UTP/Q/4W
ASMI-52/AC/M/V35/2W
ASMI-52/AC/M/V35/4W
ASMI-52/AC/S/IP/4W
ASMI-52/AC/S/UTP/Q/2W
ASMI-52/AC/S/UTP/Q/4W
ASMI-52/AC/S/V35/2W
ASMI-52/AC/S/V35/4W

APPLICATION

ASMi-52 Application

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